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Instruction Manual Model: JH-A610
Please read this user manual thoroughly and
completely before using the product.
HEARING AMPLIFIER
VER: A610-20210609-V01

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CONTENTS
03
06
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07
08
13
11
14
21
22
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27
29
30
31
32
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20
I.IMPORTANT SAFETY INSTRUCTIONS
1.CONTRAINDICATION
2.WARNINGS
3.NOTICE
II.DO NOT USE IF ANY OF THE FOLLOWING APPLY TO YOU
III.MATTERS NEEDING ATTENTION, WARNINGS AND TIPS
IV.HOW TO USE YOUR DEVICE
1.QUICK GUIDE
2.HOW TO APPLY DOMES
3.LEFT & RIGHT HEARING AMPLIFIER MARKINGS
4.WEARING/REMOVE HEARING AMPLIFIER
5.TURN ON/TURN OFF
6.VOLUME ADJUSTMENT
7.HEARING AMPLIFIER CHARGING
8.HOW TO USE THE CHARGING CASE
9.CLEANING
V. MAINTENANCE AND CLEAN
VII.HEARING AMPLIFIER CARE
VII.TROUBLESHOOTING GUIDE
VIII.TIPS FOR BETTER COMMUNICATIO
IX.TECHNICAL SPECIFICATION
X. ACCESSORIES LIST
XI.NORMALIZED SYMBOLS
XII.MAINTENANCE, STORAGE, AND DISPOSAL
XIII.WARRANTY

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I.IMPORTANT SAFETY INSTRUCTIONS
1. CONTRAINDICATION
The device should not be used in the following situations:
- Patients with chronic suppurative otitis media (CSOM),congenital
ear atresia, or any type of ear discharge
- Anyone under 6 years old
2. WARNINGS
- Keep small parts (hearing instrument, ear domes, battery or other
detachable parts) that can be swallowed out of children’s reach.
Dropping, immersing in liquid, exposure to strong electromagnetic
fields or excessive heat will damage the hearing amplifiers.
Remove devices prior to any type of X-ray, MRI, or CT scan. If parts
become stuck in the ear canal, seek medical assistance - do not
attempt to remove by yourself.
3. Notice
- Do not use at high volume for extended periods of time - ear injury
can result.
- If you experience any pain or strong discomfort using the devices,
remove and consult a doctor.
- Routine maintenance to keep the device clean is required.
Ensure that ear domes are free of debris and moisture at all times.
- Avoid shocks or dropping the product.
- Do not store or use the product in environments of high humidity
or temperature (such as sauna room), to avoid damage.
- Batteries should be properly recycled and not disposed in the
trash.
- Keep the devices away from small children. Injury or damage may
result.
- Do not set volume levels too high. Listening with high-output
devices for extended periods at high volume levels can cause
further hearing damage.
- Do not share your hearing amplifiers with others. Using a hearing
amplifier configured for someone else can result in hearing
damage or injury.
- Monitor for any unusual skin reaction. If you notice any allergic
reaction (itchiness, swelling, or rash), stop wearing the hearing
amplifiers and consult a medical specialist.
- Do not touch the hearing amplifiers to any type magnet or magne-
tized object. Your hearing amplifiers are delicate electronic
instruments and may be damaged by contact with strong magnetic
fields.
- Do not attempt to open or repair the devices yourself. Damage
Warning
Read all the information in this instruction manual and any other
literature included in the box before using the device.
Warning

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II. DO NOT USE IF ANY OF THE FOLLOWING APPLY
TO YOU:
can result and will void the warranty.
- Do not store your devices in a hot/humid locations. You should
never leave your hearing amplifiers near heating appliances or in
direct sunlight.
- Do not leave your hearing amplifiers in the car as inside tempera-
tures can reach dangerous levels which could damage the devices.
- Do not use the hearing amplifiers together with a cell phone
earpiece directly - excessive noise and distortion may result.
Instead, use via Bluetooth pairing with your cell phone. Radio
wave emissions from mobile phones can cause noise in the
hearing amplifiers or result in reduced volume.
- Please contact the MANUFACTURER:
• For assistance, if needed, in setting up, using or maintaining
your devices or
• To report any unexpected operation or events
1) Congenital atresia of external ear or deformity of any part of the
ear canal
2) Deafness is unstable, and the degree of hearing loss often
fluctuates
3) Persistent headaches, dizziness, earaches, tinnitus or other
symptoms that are not suitable for adaptation
4) Sudden onset of hearing loss within the past 3 months; rapid
progressive deafness; unilateral hearing loss or other acute ear
disease;
5) Effusion (secretions/discharge) in the ear and/or frequent
purulence (pus)
6) Central deafness (central nervous system) or non-organic
deafness
7) Patients with acute otitis externa and tympanitis
8) Patients with acute and chronic suppurative otitis media (in the
period of purulent infection)
9) Patients who are allergic to the materials of this product
Specific warnings / statements
Keep small parts away from and out of children´s reach to avoid
accidental ingestion
Warning not to use in explosive or oxygen-enriched atmospheres, as
doing so may damage the device
Warning that it should only be used by intended person as using
hearing amplifiers designed for someone else may result in hearing
damage
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1. Do not immerse the hearing amplifier in any liquid. Remove the
hearing amplifier before swimming or bathing. After swimming or
washing, wait for the ear canal to dry before wearing the hearing
amplifier.
2. After removing the hearing amplifier at night, it should be placed
in a case with a desiccant if possible, protected from light, high
temperature and high humidity environment.
3. The external surfaces of the hearing amplifier should be kept
clean, and earwax in the ear domes should be cleaned out daily
4. Applicable objects: Suitable for people with air-conducting
hearing loss of about 30-50dB
5. When you do not use hearing amplifiers, please charge the
product regularly to avoid battery damage; the recommended
charging time interval of hearing amplifiers is ≤28 days
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III. Matters needing attention, warnings and tips IV.HOW TO USE YOUR DEVICE
1.【QUICK GUIDE】
1. Volume Control
2. Microphone
3. Ear Dome
4. Charging Contacts
5. In Ear Detection Sensor
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3
4
5
1.Charging your hearing amplifiers.
* Before using your hearing amplifier for the first time, it is recom-
mended to charging when it light in green and the light turn off in
dicates charging is complete.

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2.【HOW TO APPLY DOMES】
Step 2: Push the ear dome rim membrane outward.
Step 3: Hold on to the end of the hearing amplifier and push firmly
to ensure that the dome is fastened securely.
12
L M S
Please follow these steps to mount domes, because Incorrect
dome replacement could result in the dome being left in the ear
when you remove the hearing amplifier.
Step 1: Choose a suitable size ear dome.
2.Volume adjustment
To increase the volume, turn the volume control towards the "+"
direction (forwards). To decrease the volume, turn the volume
control towards the "-" direction (backwards).
After placing your hearing amplifier in the charger, the indicator will
show the charging status of the battery until the hearing amplifier is
fully charged. When fully charged the indicator will be constantly
on, i.e. solid green light.
Turn ON/OFF
Turn ON: Take the hearing amplifier out of the charging case, it will
enter the standby status. The hearing amplifier will turn on
automatically in 3 seconds when you wear the hearing amplifier
correctly in the ears.
Turn OFF: Place back to charger case to turn off.
12

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3.【LEFT & RIGHT HEARING AMPLIFIER MARKINGS】
4.【WEARING/REMOVE HEARING AMPLIFIER】
There is a L or R marking on the hearing amplifier. This will tell
you if it is a left or a right hearing amplifier.
Notes:
After the ear dome is installed, pull the ear dome gently to see if it
is firmly installed and ensure the ear dome does not fall off easily.
L marking for left
hearing amplifier.
R marking for right
hearing amplifier.
For comfort, your hearing amplifier always automatically when you
remove them.
The in ear detection sensor will carry out real-time intelligent
detection on the operation status of the hearing amplifier. When the
hearing amplifier is removed, it will automatically enter the standby
status. When you place the hearing amplifier in the ear, it will
automatically turn on.
4.1 Wearing hearing amplifier
Step 1: Hold the hearing amplifier body (hard part), place in the ear
(Make sure it is in right direction like picture).
Step 2: Move the body slightly into auricle for holding.
4.2 Removing the hearing amplifier
Step 1: Grasp the protruding hearing amplifier and remove it.
Notes:
1. It may be in few circumstances that the ear dome remain
attached to the auditory meatus after the hearing amplifier is
taken out.
In that case, please ask a professional doctor to take the ear
dome out.
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2. Before the hearing amplifier is appropriately secured, it may give
out
the creak sound, which is a normal phenomenon. The creak sound
can be used as a reference to determine whether the hearing
amplifier
is secured. If the hearing amplifier gives out squeaking, please
check if
it is taken on correctly; if so, but the squeaking remains, please
replace with the other set of ear dome. When the hearing amplifier
is not in use, please turn it off without delay.
3. When the hearing amplifier is not functioning properly, please
check the “Troubleshooting Guide”. If none of the solutions work,
please contact our after-sales service team.

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5.【TURN ON/TURN OFF】
6.【VOLUME ADJUSTMENT】
Notes:
1. It may be in few circumstances that the ear dome remain
attached to the auditory meatus after the hearing amplifier is
taken out.
In that case, please ask a professional doctor to take the ear
dome out.
2. Before the hearing amplifier is appropriately secured, it may give
out
the creak sound, which is a normal phenomenon. The creak sound
can be used as a reference to determine whether the hearing
amplifier
is secured. If the hearing amplifier gives out squeaking, please
check if
it is taken on correctly; if so, but the squeaking remains, please
replace with the other set of ear dome. When the hearing amplifier
is not in use, please turn it off without delay.
3. When the hearing amplifier is not functioning properly, please
check the “Troubleshooting Guide”. If none of the solutions work,
please contact our after-sales service team. Note: The hearing amplifier built in with ‘delay turn on’ function,
after placing correctly in the ear canal, automatically turn on after 3
seconds delay from the ‘beep’ tone.
To increase the volume, turn the volume control towards the "+"
direction (forwards). To decrease the volume, turn the volume
control towards the "-" direction (backwards).
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Turn On: Take the hearing amplifier out of the charging case, the
hearing amplifier will enter the standby status. The hearing amplifi-
er will turn on automatically in 3 seconds when you wear the
hearing amplifier correctly in the ears.
Turn Off: The hearing amplifier will automatically enter the standby
status when you have remove it from your ear. Put the hearing
amplifier back into the correct slot of the charging case , they will
automatically turn off and start charging.

7.【HEARING AMPLIFIER CHARGING】
8.【HOW TO USE THE CHARGING CASE】
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Micro USB Cable
1
2
3
4
5
6 7
5V 1A
1. Lip
2. hearing amplifier charging inserts with left/right indicators
3. Left-side hearing amplifier charging indicator
4. Charging case charging indicator
5. Right-side hearing amplifier charging indicator
6. Battery check button
7. Micro USB connection to external power supply
Put the hearing amplifier back into the correct slot of the charging
case, they will automatically turn off and start charging. Orange
light will indicate hearing amplifiers are charging. After fully
charged, they will light in green and the light turn off in dicates
charging is complete.
(See details in table for Charging Indicator Changes of the
Charging Case)
*Note: hearing amplifier Low Power: You will hear the notification
sound when the hearing amplifier battery drops below 25%, and
when the battery below 10%, you will hear the notification sound
again.
8.1 Plug the small Micro-USB cable tip into the USB charging port
of the Case. Plug the large USB-A end into a USB-A power source
such as a wall charger or your computer.
L CASE R L CASE R

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8.2 The indicator light will show the charging status of the battery
until the hearing amplifier is fully charged. When the case is
charging, the indicator shows a orange solid light, and fully charged
the indicator light will shows a solid green light will be constant and
the light turning off indicates charging is complete.
8.3 With the hearing amplifiers in the case, all charging will
automatically turn off when the case and hearing amplifiers are
fully charged. The case will continue charging with or without the
case lid closed but it is recommended to close the lid when
charging overnight to keep out dust and moisture.
8.4 The charging process will automatically stop when the case
and hearing amplifiers are fully charged, so the hearing amplifiers
can be safely left in the charger. Place it on a flat even surface
away from exposure to moisture, dust, or extreme temperatures.
*The fully charged case offers 3 full charging cycles for a pair of
hearing amplifiers.
L CASE R
L CASE R
Charging Indicator Changes of the Charging Case
Orange Light Flashing Indicator off
Solid Orange LightSolid Green Light
Hearing
aid
Charging
Charging
Case
Charging
Discharging
Power
100%
100%
≥ 25%
≥ 25%
≤ 25%
≤ 25%
(Charging Case
battery below 25%)
Left hearing
aid charging
indicator
Charging
indicator of the
charging case
Right hearing
aid charging
indicator
Flash
Indice

















